diff --git a/payjoin-ffi/javascript/CONTRIBUTING.md b/payjoin-ffi/javascript/CONTRIBUTING.md
index 5bda0cafe..d0afa83cb 100644
--- a/payjoin-ffi/javascript/CONTRIBUTING.md
+++ b/payjoin-ffi/javascript/CONTRIBUTING.md
@@ -14,7 +14,6 @@ cd rust-payjoin/payjoin-ffi/javascript
 # Clean out stale dependencies
 npm run clean
 npm run clean:test-utils
-rm -rf node_modules
 
 # Install system dependencies
 cargo install wasm-bindgen-cli
diff --git a/payjoin-ffi/javascript/package.json b/payjoin-ffi/javascript/package.json
index d59a973d4..c14930214 100644
--- a/payjoin-ffi/javascript/package.json
+++ b/payjoin-ffi/javascript/package.json
@@ -4,14 +4,18 @@
     "releaseTag": "0.2.0+payjoin-1.0.0",
     "description": "JavaScript/WASM bindings for rust-payjoin (EXPERIMENTAL)",
     "scripts": {
-        "ubrn:nodejs": "ubrn build web --config ubrn.nodejs.config.yaml --and-generate",
+        "ubrn:nodejs": "ubrn build web --release --and-generate --config ubrn.nodejs.config.yaml",
+        "ubrn-debug:nodejs": "ubrn build web --and-generate --config ubrn.nodejs.config.yaml",
         "copy-wasm:nodejs": "cp -r src/nodejs/generated/wasm-bindgen dist/nodejs/generated/",
-        "ubrn:web": "ubrn build web --config ubrn.web.config.yaml --and-generate",
+        "ubrn:web": "ubrn build web --release --and-generate --config ubrn.web.config.yaml",
+        "ubrn-debug:web": "ubrn build web --and-generate --config ubrn.web.config.yaml",
         "copy-wasm:web": "cp -r src/web/generated/wasm-bindgen dist/web/generated/",
         "ubrn": "npm run ubrn:nodejs && npm run ubrn:web",
+        "ubrn-debug": "npm run ubrn-debug:nodejs && npm run ubrn-debug:web",
         "compile": "tsc",
         "copy-wasm": "npm run copy-wasm:nodejs && npm run copy-wasm:web",
         "build": "npm run ubrn && npm run compile && npm run copy-wasm",
+        "build-debug": "npm run ubrn-debug && npm run compile && npm run copy-wasm",
         "build:test-utils": "cd test-utils && npm install && npx @napi-rs/cli build",
         "clean": "rm -rf rust_modules dist src/**/*.js src/*/generated/",
         "clean:test-utils": "rm -rf test-utils/target test-utils/index.d.ts test-utils/*.node",